Basecamp
    Home
    Problems
    Contests
    Courses
    Rating
    Posts
    Store
    Discord
QRQ4
Sign in
Peter Refaat
QRQ4
Specialist
Egypt
Egypt
Joined Jan 20, 2026
OverviewRatingPosts
Rating
1515
Problems13
Submissions17
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2021
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2022
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2023
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2024
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2025
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2026
Feb
Mar
Apr
QRQ4 has completed the contest Blitz Round #20 and scored 800 points8 days ago
QRQ4 solved problem Bitwise Party (#12463) on first attempt9 days ago
QRQ4 solved problem Not Very Powerful (#12464) on first attempt9 days ago
QRQ4 solved problem Fe3b0onacci Pairs (#12462) on first attempt9 days ago
QRQ4 solved problem Dream Permutation (#12461) on first attempt9 days ago
QRQ4 solved problem Exciting Arrays (#12460) on first attempt9 days ago
QRQ4 has joined contest Blitz Round #2013 days ago
QRQ4 has completed the contest Weekend Practice #23 and scored no score29 days ago
QRQ4 has joined contest Weekend Practice #231 month ago
QRQ4 has joined contest Weekend Practice #221 month ago
QRQ4 solved problem Rufo's massive (#12430) on first attempt1 month ago
QRQ4 solved problem Area (#12429) on 3 attempt1 month ago
QRQ4 has joined contest Blitz Round #181 month ago
QRQ4 solved problem Monkey and Apple-trees (#7488) on 10 attempt2 months ago
QRQ4 solved problem Connectivity (#982) on first attempt3 months ago
QRQ4 solved problem From adjacency matrix to adjacency list (#3981) on first attempt3 months ago
QRQ4 has completed the contest Blitz Round #14 and scored no score3 months ago
QRQ4 has joined contest Blitz Round #143 months ago
QRQ4 solved problem Counting Pairs (#12313) on 3 attempt4 months ago
QRQ4 solved problem Digit Queries (#12312) on first attempt4 months ago
QRQ4 solved problem Bouncing Ball (#12311) on first attempt4 months ago
QRQ4 has joined contest Blitz Round #104 months ago